The medusa ransomware group listed Diethelm Keller Aviation Pte Ltd on its data leak site on 2023-02-09. Country: SG Sector: Transportation Domains named: dk-aviation.com Claim as published on the leak site: Diethelm Keller Aviation Pte Ltd (DKA), a global leader in galley inserts for the airline industry, is a wholly owned subsidiary of Diethelm Keller Brands Ltd. We are headquartered in Singapore.